Unformatted text preview: in =0V? C) Solve for V out in (B) when V in =5V and when V in =0V. D) Solve for V out in (C) when V in =5V and when V in =0V. E) What is the power consumption in (C) when V in =5V and when V in =0V. Problem 3: Ring oscillators are commonly used to form square waves. The inverters in Fig. 2 are built using both NMOS and PMOS devices where W=1 μ m, L=1 μ m, t ox =10nm, ε ox =3.45*10-11 F/m , μ n =1350 cm 2 /(Vs), μ p =480cm 2 /(Vs), V tn =1, V tp =-1. Figure 2: Ring Oscillator A) Calculate the input capacitance of a single inverter. B) Calculate current out of an inverter into a 2.5V voltage supply when V in =0V. C) Calculate the delay from the input of the first inverter to the output of the third inverter. D) Draw the waveform at V out labeling both the voltage and time scales....
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This note was uploaded on 10/27/2011 for the course ECE 323 taught by Professor Oliai during the Fall '07 term at UMass (Amherst).
- Fall '07